Blast off

• Autores: Richard Webb
• Localización: New scientist, ISSN 0262-4079, Nº. 3115, 2017, pág. 27
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • If people are looking into the darkest cosmic recesses, they want the sharpest vision possible. For workers at the Hobby-Eberly telescope in western Texas, this means a ritual repeated every two days: blasting the telescope's primary mirror with dry ice. The solid carbon dioxide dislodges dust then turns to gas, leaving no residue. Here, Webb details the history of Hobby-Eberly telescope